1. HAWK University of Applied Sciences and Arts, Hildesheim, Germany
2. School of Physiotherapy, Curtin Innovation Health Research Institute, Curtin University of Technology Perth, Perth, Australia
3. Manual Concepts, Perth, Australia
4. Universitätsklinikum Bonn, Bonn, Germany
5. Ruprecht-Karl University, Heidelberg, Germany
6. Rückenzentrum am Michel, Hamburg, Germany